The ELM 327 based OBD2 All-In-One scan tool will work with 1996 and later vehicles with any of the OBD-II protocols:
ISO15765-4 (CAN)
ISO14230-4 (KWP2000)
ISO9141-2
J1850 VPW
J1850 PWM
There are 5 diagnostic LEDs on the OBD2 All-In-One scan tool that let you see at a glance what is going on with the communications:
A Power LED
OBD Transmit Data (Tx)
OBD Receive Data (Rx)
RS-232 Transmit Data (Tx)
RS-232 Receive Data (Rx)
The entire OBD2 All-In-One unit is small (1 3/4" x 3 3/4" x 3/4") and sturdy. It can easily be tossed in your toolbox with your other diagnostic tools. It is made in the USA.
The OBD2 All-In-One scan tool can be plugged directly into the serial port on the back of your PC or laptop computer (by removing the jackscrews), or if you require more distance between the OBD2 port on your vehicle and the computer than the 5 ft OBDII cable and the 3 ft included serial cable provides, you can use any RS-232 DB9 serial cable, or purchase a 6-foot, 10-foot, or 25-foot extender . Can also be purchased for palm setup or USB. There is a short video right on the site to show you how it works so check it out. They cost just under a hundred bucks to get you started.
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